Cyclic macro dependencies "caused" by a dash (-) in the filename?

[TomasMikula]

Compiler version

3.6.3

Minimized code

my-macro.scala (if renamed to myMacro.scala, works fine)

import scala.quoted.*

transparent inline def foo =
  ${ fooImpl }

def fooImpl(using Quotes): Expr[Any] =
  Expr("hello")

test.scala

val x = foo

Output

% scalac my-macro.scala test.scala
Cyclic macro dependencies in test.scala.
Compilation stopped since no further progress can be made.

To fix this, place macros in one set of files and their callers in another.

Compile with -Xprint-suspension for information.
1 error found

Expectation

Should compile, just like when renamed to myMacro.scala:

% cp my-macro.scala myMacro.scala 
% scalac myMacro.scala test.scala
% echo $?
0

[som-snytt]

Or it should warn.

2 |package `X-Y`
  |        ^^^^^
  |The package name `X-Y` will be encoded on the classpath, and can lead to undefined behaviour.

and

3 |val x = foo
  |        ^^^
  |Failed to evaluate macro.
  |  Caused by class java.lang.ClassNotFoundException: X-Y.i22670-macro$package$

The filename is used for package object of top-level defs.

i22670$minusmacro$package.class